Correlation driven d wave superconductivity in Anderson lattice model: Two gaps

M. Wysokiński, J. Kaczmarczyk, J. Spałek, Physical Review B - Condensed Matter and Materials Physics 94 (2016).


Journal Article | Published | English
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Abstract
Superconductivity in heavy-fermion systems has an unconventional nature and is considered to originate from the universal features of the electronic structure. Here, the Anderson lattice model is studied by means of the full variational Gutzwiller wave function incorporating nonlocal effects of the on-site interaction. We show that the d-wave superconducting ground state can be driven solely by interelectronic correlations. The proposed microscopic mechanism leads to a multigap superconductivity with the dominant contribution due to f electrons and in the dx2−y2-wave channel. Our results rationalize several important observations for CeCoIn5.
Publishing Year
Date Published
2016-07-01
Journal Title
Physical Review B - Condensed Matter and Materials Physics
Acknowledgement
The work has been supported by the National Science Center (NCN) under the Grant MAESTRO, No. DEC-2012/04/A/ST3/00342.
Volume
94
Issue
2
Article Number
024517
IST-REx-ID

Cite this

Wysokiński M, Kaczmarczyk J, Spałek J. Correlation driven d wave superconductivity in Anderson lattice model: Two gaps. Physical Review B - Condensed Matter and Materials Physics. 2016;94(2). doi:10.1103/PhysRevB.94.024517
Wysokiński, M., Kaczmarczyk, J., & Spałek, J. (2016). Correlation driven d wave superconductivity in Anderson lattice model: Two gaps. Physical Review B - Condensed Matter and Materials Physics, 94(2). https://doi.org/10.1103/PhysRevB.94.024517
Wysokiński, Marcin, Jan Kaczmarczyk, and Jozef Spałek. “Correlation Driven d Wave Superconductivity in Anderson Lattice Model: Two Gaps.” Physical Review B - Condensed Matter and Materials Physics 94, no. 2 (2016). https://doi.org/10.1103/PhysRevB.94.024517.
M. Wysokiński, J. Kaczmarczyk, and J. Spałek, “Correlation driven d wave superconductivity in Anderson lattice model: Two gaps,” Physical Review B - Condensed Matter and Materials Physics, vol. 94, no. 2, 2016.
Wysokiński M, Kaczmarczyk J, Spałek J. 2016. Correlation driven d wave superconductivity in Anderson lattice model: Two gaps. Physical Review B - Condensed Matter and Materials Physics. 94(2).
Wysokiński, Marcin, et al. “Correlation Driven d Wave Superconductivity in Anderson Lattice Model: Two Gaps.” Physical Review B - Condensed Matter and Materials Physics, vol. 94, no. 2, 024517, American Physical Society, 2016, doi:10.1103/PhysRevB.94.024517.

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